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. 2018 Dec 10;18:184. doi: 10.1186/s12876-018-0913-9

Table 5.

Coding of included variables

Variables Category Frequency Codinga
Age ≤ 50 2 0
>  50 11 1
Sex Female 4 0
Male 9 1
IL-4 pg/mL (level) Low 6 0
High 7 1
IL-10 -1082 (G/A) SNP (Presence) Absent 7 0
Present 6 1
Stage II 5 0
III y IV 8 1
Metastasıs No 7 0
Yes 6 1

a The “enter” method was used to classify the results in “dummy” variables and to codify the results of a variable obtained